You think UFC fighters work every muscle group every day? Haha. Have you seen GSPs workouts? As grueling as they are, they would not be considered total body training. He does upper body movements on their own day. Recovery is a lot more then just time, nutrition, sleep, mental state, one cant really say you need blank amount of time after you work out. Oly lifters are the only people I've heard of that can do tbt every day and see results, and it only comes after YEARS of training to reach that.
BTW Sean Sherks weight training is isolation... And if you say he is a bad fighter you are crazy